Remove early CaloMgr retrieve
Retrieving the CaloMgr during initialize() causes geometry values to be processed without alignment. This is a known problem, documented in https://its.cern.ch/jira/browse/ATLASRECTS-5012 (thanks @christos for spotting the connection).
This specific fix is motivated by https://its.cern.ch/jira/browse/ATR-20706. Adding Jet or Tau HLT chains to a purely Muon configuration included this CaloLCWeightTool, which retrieves CaloMgr before alignment. Fixing CaloLCWeightTool should help fix the inconsistent results.